A whoopie pie, sometimes alternatively called a gob or a black-and-whitie, is a baked good traditional to the Pennsylvania Dutch culture as well as New England, made of two small, chocolate, disk-shaped cakes with a sweet, creamy frosting sandwiched between them.

Small, compact, durable, and convenient to carry about the person, they are popular both as a simple dessert or as a snack food. They can be purchased wrapped in plastic at

Amish farmers' markets throughout Pennsylvania, Virginia, West Virginia, and Ohio and are often found in restaurants and gift shops throughout Pennsylvania Dutch Country.
 
They can also be found in some convenience marts and supermarkets in New York. As one of the most common delicacies of the cuisine, recipes for whoopie pies are almost always included in Pennsylvania Dutch cookbooks.It is a mystery as to where the whoopie pie

first commercially made whoopie pies were manufactured by the Berwick Cake Company in Dudley Square, Roxbury, Massachusetts, starting around 1927. Some speculate that they were actually introduced to Maine and the rest of New England by migrating Amish sects. Many believe that the name derives from the expression that the taste of the cookie would provoke. The ingredients found in a whoopie pie differ from recipe to recipe. The filling can range from rich, complex buttercreams or whipped creams to common Marshmallow Fluff found in stores. Many recipes call for vegetable shortening to be added, as this allows the finished whoopie pie to be stored and transported without being easily squashed or melted. Some unconventional variations include the use of pumpkin, oatmeal, red velvet, or banana flavored cakes rather than chocolate and cream cheese or peanut butter instead of cream in the center.